I think he's more of a 15/15 player if he can stay healthy. He seems more injury prone than Reyes so far in his young career. Hopefully he rebounds, as he is not exactly helping my team at the moment.
Also, another interesting note...even though he is a switch hitter he seems to be doing much better vs lefties than vs righties. Right now I'm starting Infante when Kaz faces righties and Kaz when he faces lefties. Seems to be working OK for me at the moment, but as soon as one of them starts to perform to their potential, I might drop the other one.